Quiz: Network+ Section 1 Quiz

Which of the following are layers of the OSI reference model? (Select three.)

• Session Layer

• Application Layer

• Presentation Layer

• WAN Layer

• Transmission Layer

You just finished establishing a detailed plan of action to resolve the problem, which includes replacing a faulty network switch that has been causing intermittent connectivity issues for several users. What is the next step you should take according to the CompTIA Network+ trouble shooting methodology?

• Verify full system functionality by asking users if they are still experiencing issues

• Implement the solution by replacing the faulty network switch.

• Document the problem and the solution in the company's knowledge base.

• Establish a new theory of probable cause for the connectivity issue.

Which of the following interfaces does a SOHO router provide at the Physical Layer of the OSI model? (Select three.)

• Radio antennas for wireless signal transmission

• WAN port for Internet Service Provider (ISP) connection

• RJ-45 ports for a local cabled network

• HDMI ports for multimedia streaming

• SATA ports for internal storage connection

As the IT support specialist for a small company, you are approached by an employee who complains that they can't connect to the Internet. Preliminary checks show that the issue is isolated to this single workstation. Other devices on the same network are connecting without any issues.

You decide to employ the bottom-to-top OSI model approach to systematically troubleshoot and resolve the problem. Using the bottom-to-top OSI model approach, which of the following steps should you take first to troubleshoot the internet connectivity issue on the employee's work station?

• Check the Ethernet cable and the network interface card (NIC) for any physical damage or disconnection

• Verify that the web browser settings on the workstation are correctly configured.

• Ensure that the workstation's firewall settings are not blocking internet access.

• Confirm that the workstation is obtaining a valid IP address from the DHCP server.

Which of the following networking terms refers to the nodes that send and receive data traffic?

• End systems

• Network protocols

• Network links

• Intermediate nodes

Which of the following sets correctly represents the possible values that can be represented by each digit in hexadecimal notation?

• 0 through 7

• 0 through 9 and A through F

• 0 through 9 and A through E

What is the MOST effective method for protecting the management interface of a SOHO router?

• Disabling the firewall

• Setting the router to automatically accept firmware updates

• Enabling UPnP (Universal Plug and Play)

• Configuring a strong administrative account passphrase

Which of the following functions does a SOHO router implement at layer 2 to make use of its Physical layer adapters? (Select two.)

• DHCP server

• Network Address Translation (NAT)

• Firewall

• Wireless access point

• Ethernet switch

You own a small business and have decided to set up a network where each computer acts as both a client and a server. This decentralized model should allow for the provisioning, management, and security of services and data that you want distributed around the network. What type of network would BEST meet your requirements?

• Virtual Private network

• Client-Server network

• Enterprise network

• Peer-to-Peer network

Which of the following statements accurately describes the function of the Session layer (layer 5) in the OSI model?

• The Session layer is responsible for routing packets across different networks.

• The Session layer is used for character set conversion, such as between ASCII and Unicode.

• The Session layer provides the physical transmission of data over network media.

• The Session layer administers the process of establishing, managing, and terminating a dialog between client and server